220430500 has 48 divisors (see below), whose sum is σ = 509758704. Its totient is φ = 82982400.

The previous prime is 220430489. The next prime is 220430501. The reversal of 220430500 is 5034022.

It can be written as a sum of positive squares in 8 ways, for example, as 71639296 + 148791204 = 8464^2 + 12198^2 .

It is not an unprimeable number, because it can be changed into a prime (220430501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4467 + ... + 21466.

It is an arithmetic number, because the mean of its divisors is an integer number (10619973).

Almost surely, 2^220430500 is an apocalyptic number.

220430500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220430500 is an abundant number, since it is smaller than the sum of its proper divisors (289328204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220430500 is a wasteful number, since it uses less digits than its factorization.

220430500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25969 (or 25957 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 220430500 is about 14846.9020337577. The cubic root of 220430500 is about 604.0745818170.

Adding to 220430500 its reverse (5034022), we get a palindrome (225464522).

The spelling of 220430500 in words is "two hundred twenty million, four hundred thirty thousand, five hundred".